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I didn't think you could type that off the top of your head!RamJet said:One of the earliest types of bacteria are the cyanobacteria. Fossil evidence indicates that these bacteria existed approximately 3.3 billion years ago and were the first oxygen producing evolving phototropic organisms. They are responsible for the initial conversion of the earth’s atmosphere from an anoxic (state without oxygen) to an oxic (with oxygen) state. Being the first to carry out oxygenic photosynthesis, they were able to convert carbon dioxide into oxygen playing a major role in oxygenating the atmosphere.
New tanks usually go through this in the first year, all of mine have, but I have never had one go through it twice.
Man-o-man copy and paste makes me seem smart.